{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CLXUBPJMGRO73MXAW7QJFDTRBC","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"c95e5d4a6cbcf9a558f6c35efad83cb9e781d8dfe911287d6c21cebab142fcb7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-06-06T16:15:09Z","title_canon_sha256":"52dcacce3ade74a0dd90348e60679e0e7e17acb02647abaeaa0283c762d00fb0"},"schema_version":"1.0","source":{"id":"1706.01837","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.01837","created_at":"2026-05-18T00:42:55Z"},{"alias_kind":"arxiv_version","alias_value":"1706.01837v1","created_at":"2026-05-18T00:42:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.01837","created_at":"2026-05-18T00:42:55Z"},{"alias_kind":"pith_short_12","alias_value":"CLXUBPJMGRO7","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CLXUBPJMGRO73MXA","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CLXUBPJM","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:8e8bca73d59c0c2dc96b58f8b7434a009b42a44f0803c443acd72381418f58c3","target":"graph","created_at":"2026-05-18T00:42:55Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Autoignition delay experiments for the isomers of butanol, including n-, sec-, tert-, and iso-butanol, have been performed using a heated rapid compression machine. For a compressed pressure of 15 bar, the compressed temperatures have been varied in the range of 725-855 K for all the stoichiometric fuel/oxidizer mixtures. Over the conditions investigated in this study, the ignition delay decreases monotonically as temperature increases and exhibits single-stage characteristics. Experimental ignition delays are also compared to simulations computed using three kinetic mechanisms available in th","authors_text":"Bryan W. Weber, Chih-Jen Sung, Kamal Kumar","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-06-06T16:15:09Z","title":"Autoignition of Butanol Isomers at Low to Intermediate Temperature and Elevated Pressure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.01837","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:623548987e48fb65e2a20c4a3571ff49de13f1897e33df21946c11bba0cb98d7","target":"record","created_at":"2026-05-18T00:42:55Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"c95e5d4a6cbcf9a558f6c35efad83cb9e781d8dfe911287d6c21cebab142fcb7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-06-06T16:15:09Z","title_canon_sha256":"52dcacce3ade74a0dd90348e60679e0e7e17acb02647abaeaa0283c762d00fb0"},"schema_version":"1.0","source":{"id":"1706.01837","kind":"arxiv","version":1}},"canonical_sha256":"12ef40bd2c345dfdb2e0b7e0928e71089b30047e4a3954f971778f86b7a42453","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"12ef40bd2c345dfdb2e0b7e0928e71089b30047e4a3954f971778f86b7a42453","first_computed_at":"2026-05-18T00:42:55.812488Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:55.812488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8Crblq+DimlXxkgdLELwDcOLUUEnVx8OKIRaOtyNDWSmSz3b2N/IQHNLbq/fVY9CJW8DXYrEap7oZ8QVHj2NDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:55.813026Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.01837","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:623548987e48fb65e2a20c4a3571ff49de13f1897e33df21946c11bba0cb98d7","sha256:8e8bca73d59c0c2dc96b58f8b7434a009b42a44f0803c443acd72381418f58c3"],"state_sha256":"ea25460ab6fc48f7c3552d36636805baeb0ce0313168d1df446798d2a21697b2"}